All categories

3 years ago

If 7 bags of empty aluminum cans weigh 21 pounds how many pounds do 15 bags of empty aluminum cans weigh?

Mathematics

1 answer:

prohojiy [21]3 years ago

5 0

21÷7=3
each empty can weighs 3 pounds.

15×3=45
15 bags weigh 45 pounds.

You might be interested in

List the partial products for this problem 252 x 605

Semmy [17]

152460 is the answer to the partial products

7 0

3 years ago

How to solve the problem

Nady [450]

50 - [(6² - 24) + 9√25]
= 50 - [36 - 24 + 9*5]
= 50 - [12 + 45]
= 50 - 57
= -7

4 0

4 years ago

an inverted cone has a height of 11 inches and an initial radius of 18 inches. the volume of the inverted cone is decreasing at

joja [24]

Radius of cone is decreasing at the rate of $\frac{1623}{110\pi}$ inches

What is rate of change?

Suppose there is a function and there are two quantities. If one quantity of a function changes, the rate at which other quantity of the function changes is called rate of change of a function.

Here rate of change of radius of cone has been calculated

Radius of cone = 18 inches

Height of cone = 11 inches

Volume of cone (V) = $\frac{1}{3} \pi r^2h$

$\frac{dV}{dt} = \frac{1}{3} \pi h (2r\frac{dr}{dt})\\-541 = \frac{2}{3} \pi \times 11\times 5\times\frac{dr}{dt}\\\frac{dr}{dt} = -\frac{541 \times 3}{2 \times \pi \times 11 \times 5}\\\frac{dr}{dt} = -\frac{1623}{110 \pi}$

Radius of cone is decreasing at the rate of $\frac{1623}{110\pi}$ inches

To learn more about rate of change, refer to the link-

brainly.com/question/24313700

#SPJ4

5 0

2 years ago

10 points!! Pls help with 5 and 6

marissa [1.9K]

Answer:

I only know number 5 so here it is

the solution for the left is: 2x6=12

the solution for the right is: 5x3+4x1=15+4=19

and the answers are: 1.12 . 2.19

5 0

3 years ago

A theme park has a Ferris wheel that takes 2 minutes to go around its 450-foot circumference. The equation · (130) = 450 relates

olchik [2.2K]

Answer: The Ferris wheel’s speed in feet per hour.

Step-by-step explanation:

3 0

3 years ago